Yes

you do need a jacket based on the weather in Warsaw, Poland 1 second ago

Why? Because the air feels like the cozy middle ground between summer and winter!
54°F12°C & Clear

Wind is 2 mph4 km/h from the East, gusting to 8 mph13 km/h
April 27
2pm53°F12°C2 mph4 km/h EastClear
3pm51°F11°C2 mph4 km/h EastClear
4pm50°F10°C3 mph4 km/h SoutheastClear
5pm48°F9°C3 mph4 km/h SoutheastClear
6pm46°F8°C3 mph4 km/h SoutheastClear
7pm44°F7°C3 mph5 km/h SoutheastMostly Clear
8pm43°F6°C3 mph5 km/h SoutheastMostly Clear
9pm41°F5°C3 mph5 km/h SoutheastMostly Clear
10pm40°F5°C3 mph5 km/h SoutheastMostly Clear
11pm39°F4°C3 mph5 km/h SoutheastClear
April 28
12am39°F4°C3 mph5 km/h SoutheastClear
1am42°F6°C4 mph6 km/h SoutheastClear
DateLowHighWindDayNight
April 2638°F3°C59°F15°C4 mph6 km/h from NorthMostly ClearClear
April 2739°F4°C65°F19°C4 mph6 km/h from SouthMostly ClearPartly Cloudy
April 2847°F8°C68°F20°C10 mph16 km/h from WestCloudyMostly Cloudy
April 2949°F10°C68°F20°C11 mph18 km/h from WestMostly CloudyPartly Cloudy
April 3043°F6°C61°F16°C7 mph12 km/h from NorthwestPartly CloudyMostly Clear
May 141°F5°C65°F18°C11 mph17 km/h from WestMostly CloudyPartly Cloudy
May 243°F6°C55°F13°C13 mph21 km/h from WestMostly CloudyPartly Cloudy

Yes

Low of 39°F4°C, High of 65°F19°C
Wind: 4 mph6 km/h
Precipitation: None

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